PORSCHE RACING HISTORYPorsche 911 Carrera RSR - Chassis No. 911 460 0075
One of 15 RSRs specially built for Roger Penske’s IROC Series 1973 - Roger Penske aquired new from Porsche
27 October 1973 - IROC Riverside 1 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 6 | Porsche 911 Carrera RSR | 911 460 0075 | Denny Hulme (NZ) | Roger Penske (USA) | 5th | 4th | 30 laps |
27 October 1973 - IROC Riverside 2 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 8 | Porsche 911 Carrera RSR | 911 460 0075 | Roger McCluskey (USA) | Roger Penske (USA) | 11th | 5th | 14 laps - Accident |
28 October 1973 - IROC Riverside 3 - IROC - International Race of Champions
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 2 | Porsche 911 Carrera RSR | 911 460 0075 | David Pearson (USA) | Roger Penske (USA) | 4th | 11th | 30 laps |
17 March 1979 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA)/Werner Frank (USA) | Framm Promotions (USA) | 19th | 9th | 19th | 192 laps |
13 May 1979 - Hallett 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA) | Framm Promotions | 13th | 6th | 18th | 50 laps |
17 June 1979 - Brainerd 100 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA) | Framm Promotions | 20th | 8th | 18th | 29 laps |
7 July 1979 - Watkins Glen 6 Hours - World Championship for Makes
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 97 | Porsche 911 Carrera RSR | 911 460 0075 | TA-II | Roger Schramm (USA)/Werner Frank (USA) | Framm Promotions (USA) | 12th | 7th | 25th | 158 laps |
22 March 1980 - Sebring 12 Hours - World Challenge for Endurance Drivers
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 92 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA)/Rudy Bartling (CDN) | Framm Promotions | 13th | 4th | 35th | 213 laps |
31 August 1980 - Road America 500 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA)/Ted Klint (USA)/Werner Frank (USA) | Framm Promotions (USA) | 13th | 4th | 27th | 111 laps |
30 November 1980 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA)/Werner Frank (USA) | Framm Promotions (USA) | 10th | 4th | 38th | 59 laps |
29 November 1981 - Daytona Finale 250 Miles - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 91 | Porsche 911 Carrera RSR | 911 460 0075 | GTO | Roger Schramm (USA)/Werner Frank (USA) | Framm Promotions (USA) | 15th | 6th | 41st | 58 laps |